Sound and light amplifier.



H.J.FARRAR. SOUND` AND LIGHT AMPLIFIER.'

:y *l APPLICATION FILED JAN. 27, 1914- 1,156,865. Patented 0t.1 2,1915.

' a specilication. v

` Yis a fragmentary HORACE 'J'. FARRAR, OF SEATTLE, WASHINGTON, ASSIGNOR TO4 UNIVERSAL HIGH POWER TELEPHONE COMPANY, OF KING COUNTY, WASHINGTON.

soUND AND LIGHT AMPLIFIER.

Specification of Letters Patent.

Aplilication area Jaary 27, 1914. serial Nb. 814,845.

To all @l1/0m it may concern: Be it known that I, HORACE J.- FARRAR, a citizen of the United States, and a resident of the'city of Seattle, county of King, and

State of Washington, have invented certain new and useful Improvements in Sound and Light Amplifiers, of which the following is This invention relates to sound and light amplifiers and has for its principal objectto provide an article of this character which is of unique and compact construction, as well as sightly in appearance, and by means of- .which sound when transmitted to the device may be amplied, together with the light, from an ordina-ry electric lightbulb, through va common amplifying device, advantage being taken of\ the assistance which a shaft of light affords to the transmission of sound.

The invention will be more, fully described in the following4 specification, illustrated in the accompanying drawings and pointed out inthe appended claim.

In the drawings, igure 1 is 'a side .elevation of my device, partly in section. Fig. 2 l enlarged detailed view of the same. x

Referring now more particularly to the drawings, reference numeral 1 designates a cylindrical casing whose top`1sclosed and has projecting upwardly vfrom 1t a suitable ring, such as indicated at 2, and to which is secured one end of a supporting cord or other such fiexible member 3, the other end of the same being secured to the ceiling of a room 4. The lower end of the casing lis screw-threaded, as shown, to receive similar threads upon the circular casting 5 which is screw-threaded toa disk 6, through whlch pass the ends 7 of an electro ma et. .Secured to the bottom edge of the said casting, by means of screw threads as shown, 1s a second circular casting 8 which has a .suitf able annular recess within which are msulating rings 9 and 10, and between which 1s confined a diaphragm 11 the sald insulating rings and diaphragm belng held 1n glace by means of a'plate 12 screw-threade to. the lower circular edge of the castmg 8 as 1s best seen in Fig. 2. v v

The disk 12 Ais centrally apertured yas seen at 13 and the aperture is skirted by a tubular projection 14, whichisexternally threaded a's shown. Screw-threaded `to the sald tubular projection is the smallerend of a and theresultant energizing y and denergiz- .ing of th magnet 7;.

horn-like member 15,l throughthe larger end of which passes suitable binding screws,

such as indicated at'16, by means of which' a Haring reflector 17 is` securedtovthe'mem'- 4 ber 15. 1

l 18 is an ordinary electric light bulb and 19 its socket, the latter having extending radially from it arms 20, whose'outer ends are secured to the inner surface ofthe member 15, and projecting upwardly from the said socket is' a cone 21.-

Secured to conduit 22. n

23 indicates a source of electrical energy from which extends a wire 24 which extends to a switch 25, thence upwardly and to the each side of the device is a left, as viewed in Fig. 1, to the top of the casing 1 wheremto it passes and. is coiled around themagnet 7 vand-finally passes out of the said .casing and back to its source.' Extending from the same source isa wire 26 which extends to a switch 27, thence upwardly and to one of lthe conduits '22, through which it passes, thence to thelight bulb 18, upwardly through theother con duit 22 and nally toits -sou'rce23. y It will be noted that the diaphragm 11 is of unusual relative diameter, it being understood that the transmitter, indicated at 28, is of some suitable amplifyingconstruction, such for example as that shown in Patent Number 766821 of Gamache. phragm 11 iscaused to vibrate by the intermittent opening andl closing of the circuit further amplified by theiaring membe'r 15 and the light reflector 17, 'and when'the light circuit is closed advantage is; had of the The diaj so] The sound will-be shaft of lightY which 'proceedsdownwardly 95 from the reflector 17.v In practice I prefervto suspend one of the devices above a 'table such as is used in cafs and the like, and so long'l as sound is transmitted tothe dial phragm 11 from a phonograph orthe'like, 100

and thev switch .2 5 is vopen,such sound will be conducted to and amplified justv above the heads ofthe persons seatedA atthe table and when such,V persons-no longer desire to hear such sounds the same may be'v discontinued 105 by turning the switch 25. i

I have shown a particular form of -embodiment ofmy "invention ut lvam aware :that many-changes therein will'readily suggest themselves to others skilled inthe art,

without departing from the spirit and scope of my invention and l therefore desire to avoid being limited to the exact -form described except as limited by the appended claim.

What I claim as new isl In a combined light and sound device, the

combination of a hollow circular member having its Alower end internally threaded and which is adapted to contain the receiving,

end of a telephone, means forv suspending the said member to a ceiling, a circular plate having a threaded periphery by means of which the plate is removably attached to the saidircular member, the said plate being provided with an aperture vthrough its center, a hornlike member and means for:

removably securing its smaller end lto the said plate so that the 'aperture in the plate communicates with the interior of the hornlike member, means on the lower edge of the said hornlike member for removably securing a lamp shade thereto, arms extending across the bottom of the hornlike member, a light socket supported by means of the said arms, a cone shaped member mounted above the said socket and VWhose base is of about the same diameter as that of the socket, the said arms supporting both the socket and the cone, and the apeX of the said cone being pointed toward the source of HORACEJ. FARRAR. Witnesses:

FRED P. GORIN, R. D. SMALLEY.

sound. 

